Unusual phenomenon

I have seen some interesting sky-light phenomena since moving further north. The most interesting, besides the aurora borealis of course, has been the "sun-dogs" that you see when it's extremely cold out, say 25-below or more, and the sun is shining. The ice crystals in the air somehow refract to make you see three suns instead of just one -- the one in the middle is the real one, and then there are two off to either side about fifteen to twenty compass-degrees. Very, very cool; if it happens this winter, I'll try to catch it on camera for you.

The other night, however, it was just an average temp... not too hot, not too cold, nor had it been raining at all... but I saw a spot in the sky, a zig-zag piece of light almost like a teeny segment of a rainbow, to the left of the sun about twenty degrees. I snapped a couple of pictures:



Notice the actual sun is behind a cloud, the brighter area on the right side of the photograph. Then on the left side, about a third of the way in from the side, there's a bright spot that has a bit of a spectrum effect on it. Don't know if you can see it, but the actual thing was pretty weird-looking if a person cared to notice. Pretty soon it dissipated:



I'm going to try to hunt down the name of this phenomenon. When I find out, I'll post it. I'm pretty sure no-one cares about it as much as I do, but I find it interesting and I want to know.